Electric switch.



v.L SACHS.`

ELEcm-d swncn. APPLIQATION FILED MAR. 3l. 15H5.

Patented Mar. `5, 1918.

` Inven fr Wir/755555 [e eoseph Sachs.

i UNITED sTATEs PATENT OFFICE.

y*JOSEPH sAeHs, oEnAnTFonn, CONNECTICUT.

ELECTRIC SWITCH.

specification of Letters Patent.

Patented Mar. 5, 1918.

Appncntion and mmh 31, 191s. seriai'no. 13,226.

Be it known that I, Jo'sePH SACHS, a citizenv of the United Stzites,1.'esiding at Hurtior'd, 'in ,the county ot' Hartford and State ot yConnecticut` have invented certain new and iisefnl Improvements in Electric Switches, ot" which the following is a. specilication.

This inventionrelates to electric switches. lhile the inventionis susceptible of general use, it is-of especial utility when incorporated inl a sna i switch. AmonU'the ob'eets .-of .the invention are the provisin an article ol this eharzicter which is exceedingly snnplein `constriu'tion. which conslsts .ot

t the minimum innnleroi parts, which can heine); iensi'velv made" the Aiarts r--readilv v 7 v al and. easily".nsseinbleth thi` switch being susceptibleot' easy action and positivi-.and cer- "tain/in its loperation. 'lhe device possesses other 'features 'of novelty and advantage which with thel foregoing will be stated at length in the follo \vin; r description wherein l will set forth'that one ot' the several terms ofeinhodiiiient' 'ot'v the invention which I sectionv ot the casing' removed', of a switch 40' involving my invention.y

Figi. 5 isv a detailview in Iv ers`peetive of,

. a switching member and contact lpieces'car r'ied thereby.

6 is alikeview of 'an actuator. Like characters refer to like parts through ont the several views.

iflhe' switch comprises in' its make up, a suitable lsnplmrting; body such as that-de i I noted by 2', said body .being of some-.insu- ,latinglnaterial such as orcelain and preterably p; incased, t e easing 3 being shown. for'this-purpose. Said easing iseomposed of 'two sections connected by a. screw threaded "joint, the lower or -main section being connected in some suitable manner as' by the screw 4 with the insulating b ody- 2.

As shown said insulating body hes a clnimbe'r- 5 hereinafter more particularly described,`the screw 4 projectingdownward throught; hole or'openin V6 extending: from the iat bottom of said'c amber 5, the head of the screw being Areceived in a countersink at the npper end of said vhole yand Vthe threaded portions thereof fitting a threaded opening in the lower or main section ofthe casing 3. Bet-Ween the upper or cap section of the easing and the .insulating Abody is interposed insulation as '7 which over-lies the base of the bushing), 8 extending into the projecting neck 9 of the upper' section of' Said casing. Through this' bushing the wires of a cord may pass-to be connected yelect-rically. to companion wire connecting and Contact members as 10, the bodiesof which are fastened by screws or otherwiseto ythe upper flat side of theinsulating body- 2. The wires are .fitted aroundI screws as -11, the heads of which clamp/.said wires- 'I 'against the bodies of the wire connectingerl and contact members 10,"said screws being threaded into smdfbodies. vThe wire conn-ectingnnd contact-:linembers are provided "with Contact `portions 12'projectingintothe device is adapted to act as a-penda'ntswitch;

being also as will .hereinafter appear of snaptype. The chamber 5. lwhich receives the switching member hereinafter. descrlbed and the snap ineansjtor operating the, same bietween the on :md the off positions, comprises n lower portion 13 and an'tnpper portion 14., the side walls of thelower'portion as represented being `in parallelism. with euch other` while the vend walls are 'upon ii downward inward tper or slant. The upper portion 14 of the chamber is rectangulara the .two portions'being concentric;` ,Y The contact portions .12 are disposed 'in thereotengular portion 14 near one end'thereofz.'

The switching member is .denoted ina general way by 15,"it being approximately v of yoke or inverted U-form,theside,branches of the switching memberhaving outwardly projecting duplicate' pivots orl studsA 16 which may consist of `rivets driven through openings orl perforations near the free ends of said branches from the outside thereof and headed on the inside. Exteriorly of the switching memberI are two contact portions 17 of duplicate constructiomj the'stnds 16v in addition to serving as pivotst ac zting to hold the contact portions 17 inplace, the contact portions near" their bases or butts being perforated and the studs or* pivots 16 being driven through these perforations so as to hold the respective contact portions 17 in alinement with the adjacent 'branches or sides of the yoke-like switching member 15. The two, contact portions 17 as shown are resilient and althoughthey abutiaga-inst the i l0 outer faces of the branches of tbe .switching member 15, their upper portions are free thereofso `aSto insurethe requisite 'resiliencypr freedom of said contact portion 17 which as illustrated are practically coexten-` 16 sive with the sides or l'iiai'iches of the yokelike switching member 15. The lower portion 13 of the chamber ofthe body 2 lhas notches as 18 in its side walls dametrically opposite each' other, the lower closed end of v 20A said V-shaped notches being` practically in alineiient Ywith the. 'bottom of the chamber. 'In the sides of the chamber 5- and shown as ""formed approximately." centrally 'of the notches lt areM slots 19 disposed opposite to f nuo H5 theyswitchi-ng, member v15 may as shown iny cliidjennactuator'.as120 whichjasshown ex'- l l tendjsffithrough' the' lower .poi-tion ot'v thev 25 each other, the lower endsy ottlise sl'o'tsbei ing closed end their upper ends being open and. kopening `into, the ledge or shoulder formed at the junction of the ltwo portions 13 and 14 of the chamber 5. ln assembling i 30' thepartsjthe't-wo pivots or studs1 15h-re en# teied intothe'upper cnds oiy the mating slots 19, the'switchinginember beingr lower until vthe studs strike 'the lower closed rounded lendsof theslotspwhicli ends 'present proper ,benrings for Ithe two studs vor pivots., From this as" Will be inferred, the switching member 15 has a rocking or swinging motion.. The side walls of the notches '18 limit the i'notio 0f the` switching member, said 4'0V switching member 'beingI adapted to Vengage oppositeisidewalls ofthe notches when in the'oi`jaiid on positions. Y l I e i'rieans shown for 4ciliectingfthe oscil ny alternately in opposite v'lirectsious of cliaiiiber anda-lstithrough perfo'raitions 21 .opfen1ng.1nto. `siiidl chamber from t he exterior "-f`thebody2. 4Thisactuator QOalsorextcnds y V'throiigh properly positioned holes or perforations the casingfits ends bring always .yf acccssibleg- As represented ythe ac- 'f traitor consists of l:in zipprrixiii'iately one`- 55. piece cylindrical rod which may be wholly4 of insulating material, and` provided approximately centrally thereof, with the relduccfl yportitin 22 having the perforation 23 p .Ni Avgihichsma'y;as shown-receive :i hookwat the 60 lowerf-endrof thefspring, thevothcr endotspring* is hookedover the notched pnrtf25`1of the transverse portion of the switching' member. 15..

i l 2 0' arev each directly Lausanne Y What I claim is:`

, t It -will be noted that the switching"inem;4

A 5.5 yber 15 and the actuator supported by the 4insulating body 2; that is to s'ay, I dispense with anY individual support 'forv sustaining this switching member and actuator, the consequence being that the switch as already observed consists of a few .number of parts. Asa mattei' of fact there is merely a body, a switching member and spring,r and actuator -with the necessary contacts und securingr means. Then I 'say that the switching member is directly supported by the body,-I do not mean ,to imply lthat I muy not interpose between the switching member and the bodywear resisting means,

such for example as metal. bushings whichV 4 receive the pivots 16. I mean to imply that I dispense with an individual support 1for the switching mechanism and lutilize the body itself as such a support.

lt becomes a simple mutter to assemble-:v1

plied. Y l

It will be noted that the actuator v2() op crates an over the center spring als 24 .andthat 'the latter in turn causes the on and ott' movements of the switching member 15.r The dead centern line of this spring extends through the center of movement' of the switching member 15 and the center of conncction between the spring 24 and' the switching member.y ln Fig. 2 the switching member is shown Iby Full lines aseoiftlthe actuator-connected end of theV spring,r being to the'ri'ght of the dead center line. To more the switching member-to on ithe actuator '2O will be thrust to the leftnnd'thertioment thc' dead vc lnter line crossed the springnvill snap theswitching Imember to on as shown by. the. dotted linesin sai-dview, so that the contact potioni? of -the switch ing member-.cil engage l.the contacts of the wire. connecting and contact members-10.

*l I have described the fact tltnhmenns aireVIA i provided tor arrestiiicl the switching member 15 when .in its respective positions.. i

Means are also provided ffor performing u like functionl with respect to the actuator 2O and as shownthis lis accomplishedy bythe springr 24, which is connected to said actuator 20altcrnately striking the ta ered ends ofA the lower portion L13 of the c am; ber.-

1. A switch comprising'iin insulatingr body having a cliamber. au oscillatoryvswitchng member in ysaid' climberqprovided with pivotA means, the body Vdirectly supporting the pivot means, an endwise movable actuator extending entirely through and rojecting at. its ends from said body, un means operated by the actuator for causing snai movement of the switching member on each movement of the actuator.

2. A .switch comprising an insulating body having a chamben'an oscillatory switching 4. A switch coriiprisingaiiiiisulatingbodyl having a chamber, theopposite walls of which' are slotted, the s lots having bearing portionsand the upper ends beingr open, an oscillatory U-shaped switching member havinga cross bar and provided with lpivots i, supported by thebearingportions of the slots, an actuator extending entirely through 4 the supporting body and` movable"back and iorth, and'means connected with the cross- Abai' ofthe switching memberand' operated b y the actuator, for causin a snap movement of the switching. mem er' on each operation of the' actuator. r

` 5. A switch comprising an insulating body having Ya chamber, anvoscillatory switching member directlysupported by the side walls of the chamber, said Walls having integral means fornarresting the Switching member when in theon and the off positions, actuating means, `and means operated by the actuating means for movin the switchingmember. to on and off positions ori-:successive operations ofthe actuating means.

6. A switch-comprising an insulating body having achamber, the` sidewalls of which. have. V-notches, and also Ihaving bearing openings.- said notches and openings being formed directly i-n said side walls, an' oscillatory switching memberl having {iivots in saidv bearing openings, the side wa ls of the notches arresting the switching member when in the on and the oit' positions thereof, actuating means, and.meansjoperated by the actuating means for causing on and off' movements of thesivitching member on successive operations ofthe actuating means. 7.' 'A switch comprising an insulatingbody having a chamber, the side walls of which have V-notches, .and also have slots closed at their'lovver ends-j and open at their upper ends, said notches and slots being 'formed directly 'in said side Walls, an oscillatorysustaining the ,having means for limiting the mov switching member provided with f pivots havingbearings against the closed ends of the slots, the side walls of the -notches arresting the switching ii'lei'nb'cr'qwhen inthe on and ofi' positions theretif, actuating means, and means operated by lthe actuating means `for cau-sing on and off movements of the svvitching member on successive operations of the actuating i'neans.

9. A switch comprising aninsulatinghody having a chamber, an oscillatory switching member in Isaid chamber, said switchingv member having contacts cuits-outer sides, opposite walls of the chamber having bearings formed directlytherein, for theswitching member and said, walls also having means for arresting the switching memberwhen inthe` on and off'postions thereof, actuating means, and means operated byI the actuating means, for causing on and off movements of the switching member on successive operations of the actuating-means.

9. A switch comprising an insulating body havingl a chamber, an oscillatory switching member in said chamber, said switching member having :outer ,.sides provided with resilient contacts, an actuator supported for back and vforth movement by-the body, a spring connected with the actuator and` also with the switching member at apoint removed from' t-he center of movement of the switching member, the actuator connected end of the'spring being'- norIIlallyat one side of adead center lirm intersecting the'. center nii-connection between the spring and .the switching member andthe center of motion of ytheswitching member, theaetuator on each o' its movements being adapt-v ed to more the actuator connected end of the spring across 4said dead center line and the spring being adapted alternately to engage opposite AWalls of the-chamber to limit the, movement of the actuator,

i o t' 10. A swi ch comprising an insulating body having a chamber, an oscillatory.

' switching member in said chamber, an actuator'supported for back andforth move-.

ment by the body, a spring connected y the actuator and Aalso with the switchingv member at a point removed .from the center of movement of the switching member, the actuator connected end of the spring being normally at one side 0f a dead centerline i intersecting the center of' connection.' be-- tweenfthe spring .and the sulitchingfi'nember and the center of .motion of the's'vvitch-l ing member, the actuator on each lof its movements bein ,adapted'to moye the actuator-connecte Iend f the spring across said dead center line and thespring beingl 'adapted alternately to engage opposite Walls of the chamber to-limit the movement of the actuator, the other walls of said chamber the switching member` ement of 11. A switch comprising an insulating body having a cham er, opposite walls o which have bearing openings, a switching member of inverted `yoke form, havin' a cross bar, the sides of which are provi ed resilient contacts and also with pivots fitted in said bearing openings, an actuator mounted for back a id forth-"movement and supioried by thi` body, the actuator extending lieti. en the sides of the switching member, and means operated by the actuator and connected with the crossbaiof theA switching member, for moving the switching memb'er. to on and 01T positions on successive operations of vthe actuator.

' 12. A switch comprising an insulating body having a chamber, an inverted yoke likeswitehin member in said chamber, the' sides of wliic i are provided with outwardly extending pivots, opposite walls of the cliam. ber having bearing openings to receive said pivots, resilient contacts Vtted to. said sides andheld thereto by said pivots, an actuator exteriiliiig.thron li V the switching member' and movable bac and Aforth, and means o "erated byH thev actuator for moving t e v at the point where it is connected with the .actuating means being normally at one side of a dead center line intersecting thecenter of vconnection between said s ring means and theV switching member an the lcenter of mtio1'1`- of the switching member, the' actuatingA means on each of its movements :being dapted l to V- move .that end of 'the spri 'means which is connected Awith the actua- `in'guinea*ns'across said dead center line and means for arresting the movement .oi the swithing' member and the when in predetermined pQSOlS: i

A switch comprising vcross bar coiinectin said sides,thc sides of the `switching mein er having pivots and opposite walls of the chamber having bearing .openings directly therein, to' recel-ve said pivots, an actuator extendin through the switching member -and mova le back and forth, and means o erated by the actuator and connected wit the crossbar of the ing mem r toon and olf positions on successive movements 'of the actuator.

16. A switch lcomprisi-n an insulating body provided with relative' y fixed contacts and having a chamber, an inverted vyoke like switching member in said chamber, the surface of the chamber having' meansl for .directly supporting-said switching member foi` swinging movement, the branches of said switc ing member being rovided' with exterior-resilientcontacts a said switching member being movable to onandoif positions and having contacts lwhich en age with the relatively vfixed contactsV 'w en" said switching member is in the on position, actuating means supported bythe body, and

. mbans operated by saidactuating means for moving the switching membei` to on and oi positions successive movements of the actuating Ineens. v

In testimon whereof Laiiix in presencewo two witnesses.

' lJOSEPH SACHS.

my signature Witnesses:

j O'rroHmroN,

L. L, Mmmm switcliin member, for moving the -switch- 

